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Product Detailed Parameters
- Description：MOSFET N-CH 55V 540MA SOT23-3
- Series：OptiMOS™
- Mfr：Infineon Technologies
- Package：Tape & Reel (TR)
- FET Type：N-Channel
- Technology：MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss)：55 V
- Current - Continuous Drain (Id) @ 25°C：540mA (Ta)
- Drive Voltage (Max Rds On, Min Rds On)：4.5V, 10V
- Rds On (Max) @ Id, Vgs：650mOhm @ 270mA, 10V
- Vgs(th) (Max) @ Id：2V @ 2.7µA
- Gate Charge (Qg) (Max) @ Vgs：2.26 nC @ 10 V
- Vgs (Max)：±20V
- Input Capacitance (Ciss) (Max) @ Vds：75 pF @ 25 V
- FET Feature：-
- Power Dissipation (Max)：360mW (Ta)
- Operating Temperature：-55°C ~ 150°C (TJ)
- Grade：Automotive
- Qualification：AEC-Q101
- Mounting Type：Surface Mount
- Supplier Device Package：PG-SOT23
- Package / Case：TO-236-3, SC-59, SOT-23-3
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Overview
The BSS670S2LL6327HTSA1 is an N-Channel enhancement mode MOSFET from the OptiMOS Buck converter series. It features a 55 V drain-source breakdown voltage and a continuous drain current of 0.54 A at 25°C. The device offers a typical on-state resistance of 430 mΩ at VGS=4.5V and 346 mΩ at VGS=10V. Packaged in a PG-SOT 23 (SOT-23-3) surface-mount housing, it operates within a temperature range of -55°C to +150°C. The component is qualified according to AEC-Q101 standards.
Feature Summary
- Logic level gate drive capability for efficient control
- AEC-Q101 automotive qualification for reliability
- OptiMOS technology optimized for buck converter applications
Applications
- Buck converter circuits
- Automotive electronic systems
- General purpose switching applications
Procurement Notes
Verify the specific ordering suffix L6327HTSA1 against official Infineon documentation to confirm tape and reel packaging quantities and date codes. Ensure compatibility with SMD/SMT assembly processes. Confirm that the component meets all required environmental and electrical specifications for the target application before finalizing procurement.
Selection Notes
Select this component for low-voltage switching applications requiring logic-level gate drive. The SOT-23 package suits space-constrained designs. Verify thermal management requirements as power dissipation decreases significantly above 25°C ambient temperature. Consider the maximum pulsed drain current limits during transient conditions.
Part Context
This part belongs to the BSS670S2 series of OptiMOS transistors designed specifically for buck converter topologies. It represents a single-channel N-Channel solution within Infineon's portfolio of small signal MOSFETs. The series focuses on balancing low on-resistance with fast switching characteristics suitable for DC-DC conversion.
Replacement Considerations
Check for direct substitutes such as BSS670S2LH6327XT or BSS670S2LL6327 if availability is constrained. Ensure any replacement maintains identical pinout, voltage ratings, and package dimensions to fit existing footprints without redesign.
